Meteorological Synopsis
On April 13, a complex of severe thunderstorms formed in eastern Iowa, bringing many reports of large hail along with unexpected reports of strong tornadoes, some with debris. The worst impacts were felt in and around Iowa City where significant damage and numerous injuries were reported, in addition to at least one death across the region.
Another supercell developed on April 14 across western Indiana, touching down a few tornadoes, although nothing very serious was reported. That system moved eastward over the Mid-Atlantic States on April 15, although no tornadoes were reported there.
While the first system moved eastward, a second system developed over the Upper Midwest and tracked across the Midwest on April 15 and 16. This new system has led to about 40 reported tornadoes, and several have been damaging, although no fatalities were reported from the second system.
That system then tracked into the Mid-Atlantic on April 17, and was mostly a straight-line wind event, although there were a handful of new tornadoes reported across the region.
A third system developed on April 18 and brought even more severe weather, this time farther south in the lower Midwest, mainly Missouri. There were several more tornadoes reported from this one.
The severe weather finally came to an end on April 19 across the South.
The back side of this system produced heavy snow and blizzard conditions over the High Plains.
Read more about this topic: Easter Week 2006 Tornado Outbreak Sequence